Finding the Third Proportional to 155,628 and 236,520

Step by Step Solution

1. Step 1: Write the proportion equation
   155,628 : 236,520 = 236,520 : x
2. Step 2: Convert to fraction form
   155,628/236,520 = 236,520/x
3. Step 3: Cross multiply
   155,628x = 236,520 × 236,520
4. Step 4: Simplify right side
   155,628x = 55,941,710,400
5. Step 5: Solve for x
   x = 55,941,710,400/155,628
6. Step 6: Final answer
   x = 359,457.88